I just bought a 06 TL Non-Nav and wanna upgrade my speakers and amp while keeping stock radio. I dont want custom sub boxes, trunk space is valuable to the wife . There are hundreds of audio shops here in NYC but I just don't wanna take my car to any...I'm looking for someone who knows the TL in and out so there is no guessing at all. So if anyone here is willing or knows anyone pls LMK.